Congenital atresia of the parotid salivary duct in a 7-month-old quarter horse colt.
A 7-month-old Quarter Horse colt was examined because it had had a tortuous, distended vessel on the side of its head since birth. An abnormality of the parotid salivary duct was suspected on the basis of location and course of the vessel. Atresia of the duct near the parotid papilla was diagnosed by use of contrast sialography. Surgical transpositioning was attempted, but failed because of stricture formation. Chemical ablation of the salivary gland has been used to treat traumatic rupture of the duct. It proved to be an effective and practical method of resolving the problem in this case. Cosmetic outcome was excellent, and functional problems associated with loss of the gland were not observed.
Talley
M R
MR
Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, VA 24061.
Modransky
P D
PD
Welker
F H
FH
Smith
M M
MM
Dubbin
E S
ES
D000818:Animals; D006736:Horses / Q000002:abnormalities*; D008297:Male; D010306:Parotid Gland / Q000002:abnormalities* / Q000601:surgery